If you're looking for a simple way to keep track of purchases and expenses on the go, Lemon might be your answer. This simple, free app lets you snap a photo of your receipts and have all the transaction information automatically stored on your account. Have an electronic receipt in the form of an email? Lemon can grab that too. Just fire up the app, snap a photo of the receipt and Lemon does the rest. It will process the image and automatically enter the details like vendor, date and total price. The receipts are stored on your account so you can view them and generate reports. The only thing I don't like thus far is that there doesn't seem to be a way to edit any of the info, so if something gets processed incorrectly (or you have a food receipt where you filled in the total and tip), you can't change it. Hopefully something Lemon will add down the line. All in all, if you want an easy free way to track your spending, Lemon is an awesome choice. Side note: Who the hell spends $700 at McDonalds??